Gel pack for a cooler



FIG. 1 is a front, right perspective view of a gel pack for a cooler showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings are directed to unclaimed portions of the design, are for informational purposes only, and form no part of the claimed design. 

The ornamental design for a gel pack for a cooler, as shown and described. 